Tubular holder



E.. L. PITTS TUBULAR HOLDER Nov. 17, 1925,

Filed Ob. 20, 1924 www INVEIITOR /eZfS y ATTORNEYS p y llgUN'rr 5D ,ij-55T,

ynnwAnij :t..1f 1"71".11s,''orRAfi'om Nnwivrnxico, 'Assrenonv or donn-HALF Tooniinxnvf p c. rrsnnng'on `omvrurenn, OKLAHOMA.

TUBULAR Homann.

f Appnea'tionmed oc'mlml 2o, 1e24.- serial No. MM5/aff To all whom t may concern Be it known tha-t I, EDWARD L. Prrrs, a

'citizen of the United States," and residentof V.Raton,in the countyof Colfax" and Stateof NewfpMexico, have invented certain new and useful Improvements TubularvI-Iolders,

y l of' which the following is a spe'ciication.

.d Myfinvention relates to holders' or recep taclesr` for explosive charges, morey particukla-rlyl to fa .tubular holder inv which an ex# plosive charge can be loweredin the., borer i of a well lo'rlikefplace to a desirable distance,v and fitconsis'ts inthe combinations, constructions and arrangements hereinv de- 'f scribedfand claimed.`

` Y All object of the invention isto provideVV a holder. ofthe character described which is adapted to insulate ther contentsfthereof Y against heat resulting from friction between.

i theouter wall rof the'holder and the wall of a well bore' in which they holder is lowered. 1 A further object of the invention is the i provision of a holder 'of' the character dei vscribedhaving walls both'imper'vious vto l l moisture, relatively strong and not likely tofbeweakened because 'of corosion or to be otherwise ini-paired during the use of the holder.r u ,Y Y

Astill further object of the invention is the provision of a holder of thecharacter .described which will ,be Vpractically comv Y ipletely obliterated-y-as a; resultoffthe explovsion ofthe contents thereof. i

Other objectsand advantages will be apL parent from the following' description, considered in conjunction. with -thejaccompany- .ing drawings, in whichl y'Figure 1 is a sidepelevation of the improved holder, f

- v Fgure is a longitudinal vertical section @throughthe holder with'afportion of the inner casing broken away, and

- Figure' is a'pers'pective view of thein-r termediate casing of the holder with the zlfunnel-shaped lmemberthereof upwardly y displaced fromvnormal position.

The limproved holder kincludes anfinner casing comprising a' vtubular bodyl'whichf c iisopen at ,its upper end V.and is closed at its lower endv 'by' a v bottom .rnember 2 Y, which i preferably isimegmiwah therbody 1 and has substantially thefshape f of an inverted .cone .The inner casing is formed or anoninetallicvmateral, such as a heavyvgradexOf paper or Y like fibrous' Asomewhat 'flexible material, and thewalls thereof aref imperforate. l c n v The innerl casing closely fits in an interfmediate'casing which comprises ajtubularV *i body 8 'made lof aY light gaugeNioraminous bottom'I member 4 has'imperforatej walls, and

'depends below the lower kend of ythe body 3, ythe rim portionofthe bottomllzfclosely fit-y eod metallic material. VThejbody 3 is openatits 'upper end and is closedat its'lower'fendby an inverted conical bottomA which'ismade vof a light gauge metallic material. The

ting the lower endjportionof the body 3 andr beingy firmly secured to 4'the 'latter "in anysuitable known'manner, as by-;the use of solder, so thaty afluid tight rigidnjointvs p t,

,of thellerfmember are made'V ovf'ga light Vgauge metal butthewalls of thefbody Vof* the filler member are imperforate Vwhile Vthe flangek ieframinous for purpose tulo* presently described. l i c 'y "The lowenor4 lpointed end of thebottom 4s a ofthe innercasing isreceived within a short Y tubular metallic'member 7 which is'openat'p its lower'end and'lis rigidly secured 1at itsv whereby the fillerV e i ,upper end' by solderforkany'other suitable`A l" means to the bottomcmeinber` 'lgsor'jthat the `Y t tubular member.' 7 willdependbelow lthe lowernend ,ofV the bottom member il and will` be axially aligned *withr the 'latten/1 The j cross sectional area of the `tubular meinberf isl less than that ofthe bodyv oftheiinner A casing.'

'gorcoveringsSwhich is made of a 'noni-metal [lic material, 'such as a heavy grade of paper i y -or otherfibrouslexible'material` and.whic h I andtheintermediatecasing. Thefouterc conformably fits on the Vtubular member.,y

ing orcovering terminates atfitsflowe i beholder also'comprisesianouter casingf flush with the lower end of thev tubular ineinber 7 and at its upper end is folded inwardly over the upper edges of the'body 3 of the intermediate casing and over thel up-V per end of the liller member 5 to position to lie close against the inner wall of the upper end portion of the body of the filler member as indicated at 9. The outer casing or covering 8 preferably comprises a plurality of strips of paper or like material arranged in spiral convolutions on the body 3 of the intermediate casing and merge at their lower ends into a strip of the same material which is arranged spirally on the exposed portion of the bottom 4c of the intermediate casing and on the tubular member 7, as clearly shown in Figure l.

It will be understood that the walls of the outer casing or covering and of the inner casing may have any desired thickness and each may comprise a plurality of superposed plies, if desired, without departing from the spirit and scope of the invention. The lower end portion of the bottom Q of the inner casing, indicated Vat l0, preferably is thicker than the other portion of the walls of the inner casing.

The holder is formed and assembled substantially as follows:

The inner casing is waterproofed in any suitable known manner and is then inserted in the intermediate casing. The filler member then is placed within the upper end portion of the inner casing with the foraminous fla-nge thereof disposed between the upper end portion of the body of the inner and intermediate casings. rlhe intermediate casing then is thoroughly covered with a suitable glue or other adhesive which is sufficiently iiuid to pass through the perforations of the body of the intermediate casing and the flange 6, whereby the lapped portions of the inner and intermediate casings will be firmly cemented together. VThe flange 6 likewise will be l'irmly cemented to the upper edge portion of the inner and intermediate casings so that the body of thetiller member will be supported within the upper end portion ofthe body of theV inner casing. The intermediate casing with the inner casing and the filler` member secured therewithin in the manner described is then encased in the outer casing or covering which is securely cemented tothe intermediate casing by glue or other adhesive. Y The outer casing or covering` may be applied bv wrapping the strip of materialY of which it is formed on the intermediate casing and the tubular member 7 and byV using glue or like adhesive simultaneously with the application of the strips to the intermediate casing. A bail 1l whereby the holder may be suspended or lowered in the bore of a well or like place may have the end portions of the arms thereof secured in any suitable known manlknown manner and then is ready for use to hold an explosive charge so that the same can be lowered in the bore of a gas or oil well, preliminarily to shooting the well. From the foregoing description of the various parts of the device, the operation thereof will be readily understood. Since both the outer and inner casings of the holder are made of non-metallic material, it will be manifest that an explosive charge in the inner casing will be insulated from heat resulting from friction between the outer casing and the wall of a bore in which the holder may be lowered. The walls of the holder as a whole will be reinforced and stitl'ened by the intermediate casing which is made of metallic material. The intermediate metallic casing` will be protected by the outer and inner casings and by the waterproofing of the holder against corrosion.

Since the body of the intermediate casing is foraminous, the glue or like adhesive material is permitted to pass freely therethrough to effect the binding of the lapped portions of the several casings of the holder' to one another. Moreover, the explosion ol the contents of the holder will result in the practically complete distintegration of the holder so that the well bore will not be obstructed in such manner as to interfere with subsequent operations therein.

l claim l. A holder of the character described comprisinga tubular inner casing open at its upper end and' closed at its lower end, said inner casing being made of a non-metallic material having imperforate walls impervious to moisture, a tubular intermediate casing in which the inner casing lits, said intermediate casing being closed at its lower end and being made of metallic material, the body of the intermediate casing being foraminous, and an outer tubular casing closely covering the intermediate casing and being made of non-metallic material having imperforate walls impervious to moisture.

2. A holder of the character described comprising a tubular inner casing open at its vupper end and closed at its lower end, said inner casing being made of a non-metallic material having imperforate walls impervious to moisture, a tubular intermediate casing in which the inner casing fits, said intermediate casing being closed at its lower end and being made of metallic material, the body of the intermediate casing being foraminous, an outer tubular casing closely covering the intermediate casing and being l vmade ofv non-metallic material having imperwforate Walls imperviousto' moisture, and a funnel-shaped filler membersupported Within the upper end portion of thefinnercasing.

A holder ofthe character described l oomprisinga tubularvinner casingY open at its upper 'end and'closed; at its lower end, f sald inner casing being made of anon- 'the'inner casing,-saidller-meinber having l 'metallic lmaterial having imperforate Walls imperviousto moisture, a tubular'intermesupported Withinthe upper end portion, of Y a depending fiang'e made lof foraminous ma- 1 terial and disposed between vtheupper end gfportions of the inner and intermediate casings, said flange being joined at its upper @.end to the upper end ofthe bodyl of the ffiller'member.'

4. A holder of theV character described f comprising a t'ubular'inner casing open at' its upper end and closed at its loWer end, said inner casmg being made of' anoni metallic material having imperforate Walls impervious to moisture, a tubular intermediate casing 1n which the ninner casing lits. sald 1 rntermediategcasing belnlg closed at y its' lower end andbeing made offmetm@ v` material, the body of the intermediate casi ,ing vbeing forami'nouafanouter tubular casv ing closely eo-veringthe lntermediatecaslng .and being made of nonmetallic material having Vimperforate yva'lls impervious tok moisture, afunnel-shaped liller member supi. i ported Within the upper end ,portionof the inner casing,y said filler member having a depending flange made of foraminous material and disposed between the upperv end portions of the inner andv intermediate cas-y ings, -said flange being joined at its upper`4 end tothe upper `end of the body ofthe filler member, and a bail securedto the upper endportion of the intermediate casing and' hav.-` H ingy the end portionsgofv the armsvthereofvv covered .by said outer casing,

5*. vA holder of the vcharacter "des.oribedlV comprising 'an innerA tubular casing made of' a nonemetallic materialfdispo's'ed vat itsv lower end, an intermediate easing-having f p n a tubular body and an; inverted"conicalij n y shaped bottom closing lthe body at itslower Yend', the body of vthe intermediate vcasingvloe- 'ing foraminous and saidintermediate casing being made of a metallic material, the inner casing being secured Within the intermediate*l casing, a relatively short tubular member inkr Which the lower end portion ofthe bottom of the intermediate casing protrudes, saidv short tubular member being of less area in 5,51; Y, eo

cross section than the inner casing and` `secured at its upper end to thebottomr ofthe,l intermediate casing, andan outer casing of.

non-metallic material conformably '.itting said relatively shorttubular member andthe closed portion of thefintermediate casing,

a funnel-shaped filler Qmember. .supported Within the upper part of theinner easing,r and a bail attached to the upper end ofthe Vbody of the intermediate casing.

" EDWARD L. VVPITTS. 

